Pathetic Service

I ordered online over a week ago from redsquare online, my order was delivered Wednesday the 10th of June but it was incorrect, I emailed redsquare immediately saying they must send the courier to collect it and supply me with the correct items. It is the Friday the 19th of June and I still haven't had any response. I called their customer care last week Thursday and was advised the courier would be in contact, still haven't had any response. I called again on Wednesday the 17th of June and was advised by another person that the courier would be in contact, and still haven't heard anything. Honestly I think your service is utterly pathetic. It states that you can either return it in store or they will send the courier to collect. I want this matter sorted out because I refuse to pay for something I didn't order, and I want the correct item supp****.